Ventilator construction



Dec. 16, 1930. B. LANDAU VENTILATOR CONSTRUCTION Filed Dec. 5, 1928 2Sheets-Sheet l a4 5L? m a a s m a INVENTOR Bernha rd Land Cl u WI%ATTORNEYS Dec. 16, 1930. B. LANDAU 1,734,841 I VENTILATOR CONSTRUCTIONFiled Dec. 5, 1928 2 Sheets-Sheet 2 INVENTOR Bern hard Landa u ATTORNEYft Patented Dec. 16, 1930 1 UNITED STATES PATENT oFFICE BERNHARD LANDAU,OF COLLEGE POINT, NEW YQRK vnn'rireronoons'raucrron Application filedDecember 5, 1928. Serial No. 323,826.

This invention relates to ventilator construction; more particularly tometallic ventilators for framed members, such as doors, windows,skylights, or the like.

My invention is more particularly directed to the provision of aventilator, whether used in conjunction with doors, windows orskylights, which functions efliciently as a ventilator to permit theready circulation of air,

to givethe privacy of opaque members and at the same time provideefficient fireproof construction. Still more particularly, thisinvention is directed to the provision of all metal constructionventilators for doors,

5 windowsor the like, which may be used for to provide a ventilator fordoors, windows and the like which includes louver members,

each of which is individually formed and assembled in multiple units, asdesired, to constitute a ventilating area of any predetermined slze.

It is still further an object of" my invention to provide a ventilatorconstruction, suitable for use with a framed member, such as a door orwindow, the ventilator including 'tions, the stacked units includingmembers which are formed so as to engage the stile or rail of the framewhich is part of the door individually formed louver members which areassembled in nested or stacked relationship relatively to the 'stilesandrails of a frame member, the louver members being so formed as to beheld in engagement with each other and the stiles and rails,particularly when these members are made of metal, without employingsolder, rivets or other connections.

It is a still further object of my inven- 7 tion to provide in aventilator construction louver members in the nature ofhollow metalunits which may be maintained in'nested or stacked relationship toprovide air circulating spaces therebetween, the units being formed withinclined air deflecting surfaces to assure proper circulation of air anddepending aprons to preventdirect view through the portions forming thespaces between adjacent units, :the units being so 1 formed that theymay be maintained in engaging relationship to each other withoutnecessity for employing soldering connections. It is contemplated by myinvention to provide in a ventilator, louver members which will have allthe requisite rigidity incident tobeing formed as part of a door orWlIlClOW, extreme lightness of weight, characterized by forming thelouver membersof sheet metal, bent into hollow units includa ingangularly disposed air deflecting surfaces, having downwardly disposedspace guarding aprons, the members being so formed whereby they may bearranged in nested relationship and maintained spaced without employingsoldering connections to hold the members in position whereby afireproof ventilator may be provided, including elements which may bedecorated or met proofed "beforeassembly into the composite structure.Still further objects of my invention reside in the provision of aventilator which may bejassociated with a frame construction, such asthe stiles and rails of a door or window,-the ventilator includinglouver members formed of hollow, metallic units, formed of bent sheetmetal, including portions thereof formed to permit nesting or stackingin spaced relationship without the necessity of employlng solderingconnecor window, 7

Other objects of my invention include the provision of a. ventilatorwhich is fire proof, rigid, inexpensive to manufactureand easy toassemble.

bodying "my invention 1 00 Jigure 2 is an enlarged View taken on a line2-2 of F lgure 1;

niguie 3 1s a section talren on a line 3-3 of Figure 2;

Figure 4 1s a perspective view showing the elements of my devicepartially assembled;

higure 5 1s a perspective view of a detail. Making reference to thedrawing, I have illustrated my invention as applied to a door 10, whoseupper panel 11 is provided with ally triangular in cross section. Thesheet.

metal forming the blank is preferably first bent along the fold line 16to provide spaced side walls 17 and 18, thereby providing an internalridge. The metalis then outwardly bent along the corners 19-19 atsubstantially I right angles to the ridge, thus forming the arms 20 asthe base of the triangular section unitv previously referred to. Themetal is then bent downwardly along thecorners 21 and then reflexivelybent upwardly along the edge 22 to provide the aprons 23. The

remainder of the metal of the blank is then angularly bent to form thedeflecting surfaces 24. The metal is thenupwardly Ver tically bent atthe apex 25 to provide the tips 26 and 27, joinder being effected by theexcess portion 28 which forms the lip andv which is crimpedintoengagement over the tip 26. The crimped portion 28 is bent'overthetip 26 for only a portion of its length, to leave the tips 26 and 27uncovered, thereby providing open-ended members for purposes which willappear as this description proceeds.

'angularlv The members'above described are arranged to be disposed innested or stacked relation, with the apex of one member adjacenta baseanother immediately'above it, in numbers as described.

For maintaining the members so stacked in spaced relationship, Tprovidea riding post extending from the apex of one 11111 0. to a pointadjacent the base of the next unit im inediatelyabove the same. It ispreferred that this riding post be constructed of a metallic strip, asshown in detail in Figure 5, comprising an enlarged louverengagingporenerally trian ular in sha e and an 5-: v V Z:

extended apex 31. These members are con veniently formed by bending astrip of sheet metal refleziively upon the fold 32,: to; form branches3333. The strip is then bent outwardly at 34, 34 and then in- I wardlyagain at 35 to provide the spaced base members 36.

A strip so formed may be inserted into each end of a louver member todispose the extension 31 between the tips 26, 27 and to rest the basemembers 36, 36 upon the base portions 20,20 of the louver unit, with thespaced ends 36 to either side of the centering ridge below the fold 16previously described. Louver units so assembled, with a riding post eachend may be stacked in numbers as described, with the extension 31fitting within the centering ridge 16, thus providing spaced portions 37between each of the louver units. It will be observed that stackedunits, as described, may be held rigidly disposed within the rabbetedportion of'the stiles and rails of the door. It is preferred, however,particularly where an entire metal structure is provided, to maintainthe'louver units in stacked relation by end channel members 38. F orthis purpose the channel members 38 are made of a size to frictionallyengage the louver units at the aprons 23 and it is preferredithat thelowermost unit be fixedly connected with'the channel 38 andfor this'purpose, orifices 39, are provided in alignment with similar orificeson the lowermost louver unit, through which there is passed rivets 40.

These channel members, it will be understood,

are provided to each Cl'lCl'Of the louver units; tocompletely encase theopen-ended hollow members. For completely assemblingthe stacked unitsand attach the same to the upper rail 15, itis preferred that theuppermost louver unit .13? be formed withan upwardly directed channel25. T This is preferably formed by extending the metal from' thedeflecting surface 24 to provide upwardly directedflanges 26 and 27, thechannel being completed by the beaded, refiexively folded flanges 28.The channel so formed on the uppermost. louver member 13' serves tocentrally space the louver member within the channel 38, previouslydescribed and may, at the point where it engages the channel 38,: beprovided with oriiices 41 in alignment with similar; orifices 39 uponthe upper portion of the channel 38, through which maybe passed rivets42 to permanently assemble the louver units and channel. 7 i It willthus be observed that I have pro vided a novel ventilator ofextremelight ne ss of weight, even when made ofmet'al and withthe partslsoconstructed that they may be assembled inT'spa'ced relationship withoutsolder connections. It will be further 010- served that as I avoid theuse of any solder. connections between the louver unit-s and'the channelholding the same in assembled relationship, that I may ornamentor rustproofthese; members before assembling the same, without any danger ofmarring the coated surface. f i

It will be further observed that the assem:

bly as provided may be afiixed in position without danger of separatingthe joints and the assembly may therefore be hammered into position.

It will also be observed that by arranging the members in stackedrelationship, as described, the overlapping aprons, enveloping the lowerconstricted portion of a louver unit immediately thereunder, there isprovided a ventilating surface which will be free from any objectionabledraft creating openings. Similarly, the assembly as provided may be usedin positions where one side of the ventilator is to be exposed to theweather and the ventilator will adequately serve its intended functionWithout ingress of rain or the like.

It will further be observed that by the simple connection between louverunits and the simplicity in design thereof, the ventilator space may bebuilt of any desired length and width, without special tooling, furthereffecting economy in that the units may be maintained in stock andassembled Within a fairly wide range of tolerance.

It will be further observed that due to the similarity in constructionon both side faces thereof, the units may be assembled in the doorwithout regard to the position of the unit, the appearance being thesame on opposite sides of the door construction. Having thus describedmy invention and illustrated its use, what I claim as new and desire tosecure by Letters Patent, is

1. In a framed construction, such as a door or the like, a ventilatorcomprising individually formed louver members, means for maintaining thesame in spaced relation to provide ventilating spaces and side membersfrictionally engaging said louvers for holding a. plurality of suchlouver members in the said spaced relationship.

2. In a framed construction, such as a door or the like, a ventilatorcomprising individually formed louver members, means for holding saidlouver members in spaced relation comprising spacing posts separablefrom said members and means on said members for holding said posts indesired relation thereto. f

3. A ventilator unit for a framed construction, such as a door or thelike, comprising individually formed louver members, means for holdingsaid louver members in nested relation with free spaces therebetweencomprising an'extension on one side and an engaging portion on theopposite side, and means for maintaining said members againstdisplacement in said nested relation comprising side channel members.

4:. In a framed construction, such as a door or the like, a ventilatorcomprising individually formed, hollow sheet metal louvers, portions ofwhich are shaped to provide angularly disposed deflecting surfaces,

a spacer member for providing the ventilating spaces between louvers,each of said louvers being formed on one sideto engage said spacermember and means on the other side for positioningsaid spacer member.

5. Ina framed construction, such as a door or the like, a ventilatorcomprising individually formed, hollow sheet metal louvers, portions ofwhich are shaped to provide angularly disposed deflecting surfaces, aspacer member for providing the ventilating spaces between louvers eachof said louvers bein formed on one side to engage said spacer member andmeans on the other side for positioningsaid spacer member, and apronmembers-disposed from said deflecting sur face for shielding the spacesbetween louver members.

6. In a framed construction, such as a door or the like, a ventilatorarranged to include aplurality of louver members, in spacedrelationship, each member comprising hollow metal units, generallytriangular in cross section, formed with angularly disposed deflectingsurfaces and downwardly disposed space shielding aprons, spacer membersfor said units, said units being formed on one side to engage saidspacer members and on the other side to hold said spacing units.

7. Ina construction of'the character de scribed, a ventilator comprisinga plurality of individually formed louver members in stacked relation,side members engaging ends of said louver members to hold said louvermembers against displacement in said stacked relation, said louvermembers being formed bers including surfaces in frictional engagementfor holding the louver members in desired relation to said side members.

9. In a construction of the character described including a plurality oflouver members and sidemembers for maintaining the same inspacedrelationship, each louver member comprising hollow, sheet metal units,formed generally triangula'rly in cross section, with the base portionsprovided with space shielding, deflecting aprons and the apices withspacer member holding portions.

10. In aconstruction of the character described including a pl rality.of louver mem' bers and side members for maintaining the same in spacedrelationship, each louver member comprising hollow, sheet metal units,

formed generally triangularly in cross section, with the base portionsprovided With space shielding deflecting aprons and the apices withspacer member holding portions ,1 and means adjacent said base portionsfor en gaging a spacer member.

11. In a framed construction, such as a door or the like, a ventilatorcomprising individually formed hollow, sheet metal louver members,arranged to be disposed in nested relation, said louver members beinggenerally triangular in cross section and having clownivardly disposedspace shielding aprons, a

riding post formed to be retained Within said hollow members and havingan extension disposed through the apices of said members and arranged toengage a louver member disposed immediately above the same againstdisplacement and channel members engagingsaid 20 louver members at thebase portions previously mentioned to hold the same against lateraldisplacement.

12. In a framed construction, such as a door or the like, a ventilatorcomprising individually formed hollow, sheet metal louvers, spacermembers for said louvers and side channel members frictionally engagingthe ends of said louver members and maintaining the same in stackedrelation and fas- .su; tenine means for holding louver members atopposite ends of the stack against displacement.

13. In a construction of the character described, including hollow,sheet metal louver ,.-,j members generally triangular in shape, meansfor maintaining said louver members in spaced relationship to provideair circulating spaces therebetween, spacer members thereforformed ofsheet metal strips arranged to be o inserted in the ends of said louversand inclu ding extensions adapted to engage the base portions of alouver member immediately thereover, to hold said louver members in saidpredetermined, spaced relationship and 45 against displacement.

Signed at College Point, in the county of Queens and State of New Yorkthis 16th day of November A. D. 1928. Y

BERNHARD LANDAU.

